Spirax Sarco SP500 Manuale utente

IM-P343-35 CH Issue 1 1

SP500

Electropneumatic Smart Positioner

Installation and Maintenance Instructions

IM-P343-35

CH Issue 1

3.568.5275.300

1. Index

2. Safetyinformation

3. Technical information

4. Options

5. Installation

6. Electricalconnections

7. Quickstartprocedure

8. Programming

 flowchart

9. Programmingand

 commissioning

10. Maintenance

11. Defaultvaluesand

 programsettings

12. Glossaryof

 displaydata

IM-P343-35 CH Issue 12

1. Index

Section Sub-section

2.1 General requirements

2. Safety 2.2 Electrical safety requirements

information 2.3 Electromagnetic compatibility

3.1 Description

3. Technical 3.2 Technical data

information 3.3 Materials

3.4 Programmable functions

4. Options

4.1 Pressure gauge block

4.2 Retransmission and travel switches option board

4.3 External power supply option board

5.1 Mounting the SP500 positioner -

General informaton

5.2 Sequence for mounting an SP500 positioner to

5. Installation a linear actuator

5.3 Sequence for mounting an SP500 positioner to

a rotary actuator

5.4 Air supply and connections

6. Electrical 6.1 Guidance notes

connections 6.2 Wiring diagrams

7. Quick start 7.1 2-port valves

procedure 7.2 3-port valves

8. Programming flow chart

9.1 SET-UP NOW

9.2 SP500 MENU

9.3 MANOP

9. Programming and 9.4 AUTOS - automatic autostroke commissioning

commissioning 9.5 SET - setting of valve functions

9.6 TUNE - setting of valve tune functions

9.7 RUN - automatic operation

9.8 STRVL and RTIME - valve diagnostics

9.9 RETRN - return to SP500 MENU in main menu

10. Maintenance and 10.1 Air supply quality

troubleshooting 10.2 Fitting replacement filter plug kit

11. Default values and program settings

12. Glossary of 12.1 Main menu display functions

display data 12.2 Sub-menu display functions

IM-P343-35 CH Issue 1 3

2. Safety information

2.1 General requirements

The flawless and safe operation of the SP500 positioners is reliant on proper

transportation, storage, installation and commissioning by qualified personnel, proper

use and careful maintenance.

Prior to installing, using or maintaining the positioner, consideration should be given to:

- The working environment.

- Safe access.

- Lighting.

- Pipeline fluid hazards.

- Temperature.

- System isolation.

- Location.

The SP500 positioner should be mounted with sufficient space to allow opening of

the hinged cover and to provide access for electrical and air connections. When

fitting to an actuator, ensure that the positioner will not be exposed to an ambient

temperature outside the range of -10°C to +80°C. The positioner enclosure is rated

to IP65 (see BS EN 60534-1 1998).

2.2 Electrical safety requirements

The SP500 is a class III product which must only be powered from Safe Extra Low

Voltage (SELV) sources whether by virtue of a 4 - 20 mA control signal or from a

separate power supply. Similarly all signal circuits connected to an options board must

operate within the confines of SELV systems. All associated wiring must be separated

from other wiring containing hazardous voltages.

2.3 Electromagnetic compatibility

The product complies with the Electromagnetic Compatibility Directive 2004 / 108 / EC

according to:

- EN 61326-1: 2006

- EN 61326-2-3: 2006

- EN 55011: 1998 + A1: 1999 + A2: 2002

- EN 61000-4-2: 1995 + A1: 1998 + A2: 2001

- EN 61000-4-3: 2006

- EN 61000-4-4: 2004

- EN 61000-4-5: 2006

- EN 61000-4-6: 2007

- EN 61000-4-11: 2004

This product may be affected by interference if:

- The product or its wiring is located near a radio transmitter. The actual separation

necessary will vary according to the power of the transmitter.

- Cellular telephones or mobile radios are used within approximately one metre of

the product or its wiring.

- The wiring is routed alongside power cables subject to high voltage transients or

current surges.

IM-P343-35 CH Issue 14

3. Technical information

3.1 Description

The SP500 smart valve positioner is loop powered from a 4 - 20 mA input signal to provide

accurate adaptive positional control of pneumatic actuated linear and quarter turn valves.

Precise control is maintained through valve position feedback that automatically varies the

pneumatic output pressure to overcome the effects of stem friction and flow forces to maintain

desired valve position. Indication of valve position is provided through a continuous digital

display of % travel. Valve position feedback is retrieved by means of a non contact technology

based on Hall effect. The pneumatics are based on piezovalve technology - Therefore, high

resolution, high reliability, vibration insensitivity and extremely low air consumption is

guaranteed at steady state.

The SP500 includes many smart functions that can be fully programmed through menu driven

software using an integral keypad and LCD alphanumeric data. Valve commissioning is

simplified through an autostroke routine and display of programming status, software travel

switch status, mA input signal and valve diagnostics data. Moreover, the absence of

mechanical linkages between valve stem and positioner, drastically simplifies the mounting

procedure and reduces the time required. The SP500 is supplied with a NAMUR standard

mounting kit for attachment to yoke or pillar mounted actuators. For quarter turn valves, a

mounting kit compliant to VDI / VDE 3845 is supplied.

Fig. 1

No. Part

1. LCD display

2. Main menu functions with LCD ﬂag indication

3. Signal pressure to activator

4. Gland connection for wiring M20

5. Terminal block

6. Increase value or toggle value key

7. Decrease value or toggle value key

8. Enter key

9. Supply pressure to positioner

10. Optional pressure gauge block with gauges

11. Spare M20 gland connection for wiring a 4-20 mA retransmission or software switches

12. External earth

13. Internal earth

13 5 6 7 8

IM-P343-35 CH Issue 1 5

No. Features

1. indicates all is OK

2. ! Indicates a delay in positioning, this

disappears when the position is reached

3. Indicates that the value displayed is a

percentage

4. Indicates that the value displayed is the

input current measured in mA

5. Indicates that the value displayed is a

time measured in seconds

6. Indicates that you're accessing the main

programming menus

7. Indicates that the positioner is in manual

mode

8. Indicates that the positioner is running

the autocalibration

9. Indicates that you're accessing the SET

10. Indicates that the positioner is in

automatic mode

11. Indicates that you're accessing the

TUNE menu

10 11

6 7 8 9 5

Fig. 2

3.2 Technical data

Input signal range 4 - 20 mA nominal

Minimum input signal (loop powered) 3.6 mA

Minimum air supply pressure 1.0 bar g above maximum spring range pressure

(Note: For the PN5120 actuator, the supply air pressure should be set at 1.5 bar g)

Maximum air supply pressure 6.0 bar g

Air quality Air supply must be dry, oil and dust free to ISO 8573-1 class 2:3:1

Output pressure 0 to 100% supply pressure

Stroke range Linear valves 10 mm to 100 mm

Quarter turn valves 5° to 120°

Action Single action / fail vent

Operating temperature -10°C to +80°C

Maximum air flow 4.2 normal m3/h at 1.4 bar g or 8.5 normal m3/h at 6 bar g

Steady state air consumption Less than 0.016 normal m3/h

Air connections Screwed ¼" NPT

Cable gland M20

Electrical connections Spring clamp terminals for 0.2 to 1.5 mm² wire

Enclosure rating IP65

Characteristic Linear, Equal % (ratio 1:50) or Fast opening (ratio 50:1)

Resolution (maximum) 0.1% F.S.

4 - 20 mA retransmit (optional) 4 - 20 mA retransmission of valve position

Software travel switches (optional) Two software configured 1 x normally closed

travel switches 1 x normally open

Shipping weight 2.2 kg

1 4

IM-P343-35 CH Issue 16

3.3 Materials

Part Material Finish

Case and cover Die cast aluminium Anti-corrosive paint to RAL5010

Magnet bracket Die cast aluminium

3.4 Programmable functions

Autostroke Automatic commissioning routine

Valve type 2-port or 3-port

% travel Selectable 0 to 100% or 100% to 0%

depending on valve / actuator configuration

Control action Direct or reverse action (4 - 20 or 20 - 4 mA)

Travel limits (optional) Setting of minimum and maximum travel limits

(valve open and valve close % travel)

Displayed travel % 0 - 100% displayed over mechanical travel limits or

MIN-T / MAX-T adjusted settings

Signal span 4 - 20 mA or split ranged (minimum span 4 mA)

Dead-band Positional accuracy (minimum 0.2% to max. 10% of valve travel)

Tight shut-off Fully vent or inflate at preset input signals

Characteristic Linear, = % or fast opening input signal to valve travel relationship

Travel time Slows down valve opening or closing

Travel switches Software travel switch setting (range 0 - 100%)

Reset Resets all programmed values to default settings

Calibrate Centering

Input signal Visualisation of input mA signal

Auto operation / vent Option of automatic operation or

vent (actuator) whilst reprogramming

Data logging Diagnostic record of total number of valve strokes

and completed hours run time

IM-P343-35 CH Issue 1 7

4. Options

4.1 Pressure gauge block

An optional pressure gauge block (Figure 3) can be fitted onto the SP500 positioner which

includes two pressure gauges indicating air supply pressure and output air signal pressure to

the actuator. The pressure gauge block can be retrospectively fitted using 2 off M5 socket

head screws. Ensure that the gauge block air connection 'O' rings are correctly located

before tightening.

Fig. 3

IM-P343-35 CH Issue 18

4.2 Retransmission and travel switches option board

An option board can be ﬁtted in the positioner to add valve position retransmission

functionality and software travel switches functionality.

The board generates a 4-20 mA current signal which represents the actual valve position.

Moreover 2 output terminals are available to be conﬁgured as software travel switches.

The threshold can be adjusted via software.

Refer to Section 6, 'Electrical connections' for wirings.

Refer to Section 9.6.7 for travel switching conﬁguration.

An option board is optionally available and can be mounted in situ. In this case please refer

to the mounting instruction below:

- Open the positioner (Figure 4).

- Switch off the power supply.

- Switch off the air supply.

- Unscrew the board as shown in Figure 5.

Fig. 4

Fig. 5

IM-P343-35 CH Issue 1 9

- Rotate the mainboard and insert the option board (as shown in Figures 6, 7, 8 and 9).

- Rotate the mainboard to the initial position, ﬁx it with the 4 screws, close the positioner and

switch on the power supply and air supply.

Fig. 6

Fig. 7

Fig. 8

Fig. 9

IM-P343-35 CH Issue 110

4.3 External power supply option board

The SP500 can host an option board for 24 V power supply.

It's a 4 wiring diagram: 2 wires for current loop and 2 wires for power supply through a

24 V external voltage. This reduces dramatically the voltage drop on the current loop. The

drop is 7 V when the unit is powered by the loop (2 wires), it falls to 1 V when the 4 wires

conﬁguration is used.

This board can be useful when you have many instruments connected on the same current

loop. The fact is that in this case, the total voltage drop on the loop could be higher than the

maximum voltage drop that the controller (PLC) can handle.

Refer to Section 6, 'Electrical connections' for wirings.

An option board is optionally available and can be mounted in situ. In this case please refer

to the mounting instruction below:

- Open the positioner (Figure 10).

- Switch off the power supply.

- Switch off the air supply.

- Unscrew the board as shown in Figure 11.

Fig. 11

Fig. 10

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